<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    // let str = 'pink'
    // let str1 = "pink"
    // let str2 = `中文`
    // console.log(str2)

    // 字符串拼接
    // console.log(1 + 1)
    // console.log('gaga' + '帅哥')

    let age = 22
    document.write('我今年' + age + '岁了')
  </script>
</body>

</html>